SSAW Welded Pipe X52

SSAW Welded Pipe X52

SSAW pipe manufacturing process SSAW Steel Pipe Manufacturing Flow Chart: Uncoiling – Flattening – Shearing and Butt Welding – Edge Milling – Preliminary Rolling – Forming – Inside and Outside Welding – Cutting Off – Ultrasonic Testing – X Ray Test – Weld Grinding for Pipe Ends – Expanding at...

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SSAW pipe manufacturing process

SSAW Steel Pipe Manufacturing Flow Chart:

Uncoiling – Flattening – Shearing and Butt Welding – Edge Milling – Preliminary Rolling – Forming – Inside and Outside Welding – Cutting Off – Ultrasonic Testing – X Ray Test – Weld Grinding for Pipe Ends – Expanding at Pipe Ends – Hydrostatic Test – Ultrasonic Inspection – Pipe Ends Beveling – X Test – Production Inspection – Marking – Warehousing

The differences between SAW (LSAW, SSAW) and ERW pipe

1. The surface quality of ERW pipes are better when compared to SAW (LSAW, SSAW) pipes, as they are smooth and have a better finish. In most of the SAW pipes, it is mainly about the weld reinforcement internally and externally.

2. The defects found in ERW pipes are lesser than SAW pipes. As there is a solvent deposit in SAW pipes, it results in more defects apart from the defects in the volume. The defects found in ERW pipes are only confined to wire-line and straight welds and it can be inspected easily. The defects can be noticed easily and the ultrasonic reflection on the surface makes it easier to detect.

3. The residual stress ratio in ERW is lower than SAW pipes. As ERW pipe deformation happens more in ERW followed by a sizing of flat oval, it results in elliptical vertical changes and necking, thereby making the stress smaller. The displacement of ERW pipes was smaller when compared along the axial and transverse incisions for comparison with SAW pipes built using the same material and it was also easy to detect.

4. Although the overall performance of both ERW and SAW pipes are the same, once the pipes have defect, the steel scrap and welding can be done on ERW, while it is not the same in case of SAW, which would result in cracking or corrosion, making the ERW more durable.

Applications of the API 5L welded line pipe

For Petroleum and natural gas industries, pipeline transportation systems.

SSAW steel pipe

SSAW steel pipe,SSAW pipe,SSAW

 

SSAW steel pipe 
1.We produce pipes by ourselves 
2.OD:219-2920mm, WT:5-25mm,length of pipe:3-24m 
3.certificate: API 5L & ISO

 

SSAW steel pipe
1.We produce pipes ourselves
2.OD:219-2420mm,WT:5-30mm,length of pipe:3-18m
3.certificate: API 5L & ISO

 

Product nameSpiral submerged arc welding steel pipe
StandardAPI 5L, GB/T9711,
GradeQ235,Q345,B,X42,X52,X60,X65,X70
applicationAs conveyer pipe in the fields of petroleum , heat, and natural gas, construction pipe, ground piling pipe
Outside diameter219-2820mm
Wall thickness5.00-26.00mm
Length6-24m
TechniqueDouble sides submerged arc welding steel pipe
CertificateISO9001:2008, API SPEC 5L
Package detailsLoose, case packing, or bulk pack

Chemical Composition

API 5L

Steel Grade

C

Mn

P

S

Max

Max

Min

Max

Max

API SPEC 5L 
ISO 3183
GB/T 9711

PSL1

A25/L175

0.21

0.60


0.030

0.030

A25P/L175P

0.21

0.60


0.080

0.030

A/L210

0.22

0.90


0.030

0.030

B/L245

0.28

1.20


0.030

0.030

X42/L290

0.28

1.30


0.030

0.030

X46/L320,X52/L360,X56/390

0.28

1.40


0.030

0.030

X60/L415,X65/L450,X70/L485

0.28

1.40


0.030

0.030

PSL2

B/L245

0.24

1.20


0.025

0.015

X42/L290

0.24

1.30


0.025

0.015

X46/L320,X52/L360,X56/L390

0.24

1.40


0.025

0.015

X60/L415,X65/L450,X70/L485

0.24

1.40


0.025

0.015

 



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